How to Solve Low-Frequency Ear Pressure in Cars?

[VonCamila]

The solution to low-frequency resonance in cars is to install high-efficiency soundproofing cotton for noise reduction. Due to the thin metal and plastic panels in mid-to-low-end vehicles, external noise can penetrate, so owners can install thickened soundproof panels to block noise. Below is relevant information about low-frequency resonance in cars: 1. Meaning: Low-frequency resonance in cars can be simply understood as similar to the experience of being on an airplane, where internal pressure is high and there is a buzzing sound in the ears. 2. Principle: The principle of low-frequency resonance is that when sound passes through the air to the car body, it reflects back, forming low-frequency resonance. Certain frequencies of reflected sound waves happen to be in the same vibration direction as the original sound, thus amplifying that frequency of sound. Conversely, some frequencies of reflected sound waves are in the opposite vibration direction of the original sound, thereby weakening that frequency of sound.